Gree AIRY INVERTER R32 Series Service Manual
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Gree AIRY INVERTER R32 Series Service Manual

Gree AIRY INVERTER R32 Series Service Manual

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AIRY INVERTER SERIES_R32
Service Manual
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

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  • Page 1 Change for life AIRY INVERTER SERIES_R32 Service Manual GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI...

  • Page 2: Table Of Contents

    6. Function and Control ..........31 6.1 Remote Controller Introduction for YBE1FB9F ...........31 6.2 Brief Description of Models and Functions ..........37 6.3 GREE+ App Operation Manual ................42 6.4 Ewpe Smart App Operation Manual ..............43 Part II : Installation and Maintenance ....44 7.
  • Page 3 Service Manual 8.6 Installation of Outdoor Unit ................58 8.7 Vacuum Pumping and Leak Detection ............60 8.8 Check after Installation and Test Operation ..........60 9. Maintenance ..............61 9.1 Error Code List ......................61 9.2 Procedure of Troubleshooting ................66 9.3 Troubleshooting for Normal Malfunction ............78 10.

  • Page 4: Part I : Technical Information

    1. Summary Service Manual Indoor Unit Remote Controller: YBE1FB9F A1 panel On/Off On/Off Wifi Wifi I Feel I Feel UD-swing UD-swing Humidity Humidity LR-swing LR-swing Timer Timer Sleep Sleep Light Light Outdoor Unit: GWH09AVDXE-D6DNA1A/O GWH09AVDXE-D6DNA1B/O GWH18AVEXF-D6DNA1A/O GWH18AVEXF-D6DNA1B/O GWH12AVDXE-D6DNA1A/O GWH12AVDXE-D6DNA1B/O GWH24AVEXH-D6DNA1A/O GWH24AVEXH-D6DNA1B/O Technical Information...
  • Page 5 Service Manual Model list: Indoor product Outdoor product Remote Model Product code Indoor model Outdoor model code code Controller CB601004600 CB601N04600 GWH09AVDXE-D6DNA1A GWH09AVDXE-D6DNA1A/I GWH09AVDXE-D6DNA1A/O CB601W04600 CB601004601 CB601N04601 CB601007200 CB601N07200 GWH09AVDXE-D6DNA1B GWH09AVDXE-D6DNA1B/I GWH09AVDXE-D6DNA1B/O CB601W07200 CB601007201 CB601N07201 CB601004700 CB601N04700 GWH12AVDXE-D6DNA1A GWH12AVDXE-D6DNA1A/I GWH12AVDXE-D6DNA1A/O CB601W04700 CB601004701 CB601N04701 CB601007100...

  • Page 6: Specifications

    2. Specifications Service Manual 2.1 Specification Sheet Model GWH09AVDXE-D6DNA1A Product Code CB601004600/CB601004601 Rated Voltage 208/230 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 9100 Heating Capacity Btu/h 10600 Cooling Power Input Heating Power Input Cooling Current Input 3.40 Heating Current Input 4.30...
  • Page 7 Service Manual Outdoor Unit Model GWH09AVDXE-D6DNA1A/O Outdoor Unit Product Code CB601W04600 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A088zE170S Compressor Oil FW68L Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range °F Cooling: 61~86 / Heating: 46~86...
  • Page 8 Service Manual Model GWH09AVDXE-D6DNA1B Product Code CB601007200/CB601007201 Rated Voltage 208/230 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 9100 Heating Capacity Btu/h 10600 Cooling Power Input Heating Power Input Cooling Current Input 3.40 Heating Current Input 4.30 Rated Input 1650...
  • Page 9 Service Manual Outdoor Unit Model GWH09AVDXE-D6DNA1A/O Outdoor Unit Product Code CB601W04600 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A088zE170S Compressor Oil FW68L Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range °F Cooling: 61~86 / Heating: 46~86...
  • Page 10 Service Manual Model GWH12AVDXE-D6DNA1A Product Code CB601004700/CB601004701 Rated Voltage 208/230 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 12000 Heating Capacity Btu/h 12200 Cooling Power Input Heating Power Input Cooling Current Input 3.90 Heating Current Input 3.93 Rated Input 1650...
  • Page 11 Service Manual Outdoor Unit Model GWH12AVDXE-D6DNA1A/O Outdoor Unit Product Code CB601W04700 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A088zE170S Compressor Oil FW68L Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range °F Cooling: 61~86 / Heating: 46~86...
  • Page 12 Service Manual Model GWH12AVDXE-D6DNA1B Product Code CB601007100/CB601007101 Rated Voltage 208/230 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 12000 Heating Capacity Btu/h 12200 Cooling Power Input Heating Power Input Cooling Current Input 3.90 Heating Current Input 3.93 Rated Input 1750...
  • Page 13 Service Manual Outdoor Unit Model GWH12AVDXE-D6DNA1B/O Outdoor Unit Product Code CB601W07100 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A088zE170S Compressor Oil FW68L Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range °F Cooling: 61~86 / Heating: 46~86...
  • Page 14 Service Manual Model GWH18AVEXF-D6DNA1A Product Code CB601005100/CB601005101 Rated Voltage 208/230 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 18000 Heating Capacity Btu/h 18600 Cooling Power Input 1256 Heating Power Input 1362 Cooling Current Input Heating Current Input Rated Input 3500 Rated Cooling Current...
  • Page 15 Service Manual Outdoor Unit Model GWH18AVEXF-D6DNA1A/O Outdoor Unit Product Code CB601W05100 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXFS-A150zX170S Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor LRA. 25.0 Compressor RLA 14.30 Compressor Power Input 1358 Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range...
  • Page 16 Service Manual Model GWH18AVEXF-D6DNA1B Product Code CB601007500/CB601007501 Rated Voltage 208/230 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 18000 Heating Capacity Btu/h 18600 Cooling Power Input 1256 Heating Power Input 1362 Cooling Current Input Heating Current Input Rated Input 3500 Rated Cooling Current...
  • Page 17 Service Manual Outdoor Unit Model GWH18AVEXF-D6DNA1B/O Outdoor Unit Product Code CB601W07500 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXFS-A150zX170S Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor LRA. 25.0 Compressor RLA 14.30 Compressor Power Input 1358 Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range...
  • Page 18 Service Manual Model GWH24AVEXH-D6DNA1A Product Code CB601003900/CB601003901 Rated Voltage 208/230 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 22000 Heating Capacity Btu/h 24000 Cooling Power Input 1573 Heating Power Input 1803 Cooling Current Input Heating Current Input Rated Input 4800 Rated Cooling Current...
  • Page 19 Service Manual Outdoor Unit Model GWH24AVEXH-D6DNA1A/O Outdoor Unit Product Code CB601W03900 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXFS-B221zX070S Compressor Oil FW68DA or equivalent Compressor Type Twin Rotary Compressor LRA. Compressor RLA 18.0 Compressor Power Input 1775 Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range...
  • Page 20 Service Manual Model GWH24AVEXH-D6DNA1B Product Code CB601007300/CB601007301 Rated Voltage 208/230 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity Btu/h 22000 Heating Capacity Btu/h 24000 Cooling Power Input 1573 Heating Power Input 1803 Cooling Current Input Heating Current Input Rated Input 4800 Rated Cooling Current...
  • Page 21 Service Manual Outdoor Unit Model GWH24AVEXH-D6DNA1B/O Outdoor Unit Product Code CB601W07300 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXFS-B221zX070S Compressor Oil FW68DA or equivalent Compressor Type Twin Rotary Compressor LRA. Compressor RLA 18.0 Compressor Power Input 1775 Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range...

  • Page 22: Capacity Variation Ratio According To Temperature

    Service Manual 2.2 Capacity Variation Ratio According to Temperature Cooling: Heating: Conditions Conditions Indoor: DB 80°F / WB 66.9°F Indoor: DB 70°F Outdoor: DB 95°F Outdoor: DB 19.94°F / WB 19.04°F Indoor air flow: Super High Indoor air flow: Super High Pipe length: 24.6ft Pipe length: 24.6ft -30 -20 -10...

  • Page 23: Outline Dimension Diagram

    3. Outline Dimension Diagram Service Manual 3.1 Indoor Unit (6 17/64) (7 3/4) Unit: mm(inch) (6 13/16) (5 7/16) (6 17/64) (7 3/4) (6 13/16) (9 29/64) (5 7/16) (8 7/64) Unit: inch Model 38 3/16 13 21/32 10 1/8 8 5/64 22 7/64 43 45/64...

  • Page 24: Outdoor Unit

    Service Manual 3.2 Outdoor Unit 09K, 12K 31 11/16 13 1/64 34 3/8 14 51/64 Unit: inch 20 25/32 13 25/64 15 53/64 37 23/32 22 7/16 Unit: inch Technical Information...
  • Page 25 Service Manual 36 11/32 14 17/32 16 13/16 39 3/8 Unit: inch 24 1/64 Technical Information...

  • Page 26: Refrigerant System Diagram

    COOLING 4. Refrigerant System Diagram Service Manual Heat pump model Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Accumlator Suction exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Electron Strainer expansion valve COOLING HEATING...

  • Page 27: Electrical Part

    5. Electrical Part Service Manual 5.1 Wiring Diagram ● Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name White Green Jumper cap Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ●...
  • Page 28 Service Manual GWH18AVEXF-D6DNA1A/I GWH18AVEXF-D6DNA1B/I GWH24AVEXH-D6DNA1A/I GWH24AVEXH-D6DNA1B/I OPTIONAL OPTIONAL OPTIONAL OPTIONAL TUBE ROOM GATE WIRED TEMP. RECEIVER AND MOTOR TEMP. CONTROL CONTROLLER SENSOR SENSOR SENSOR DISPLAY BOARD DISPLAY AP1 DISPLAY θ θ FAN MOTOR FRESH AIR MODULE TERMINAL T-SENSOR DISP DC-MOTOR DOOR-C COM-MANUAL N-AIR...
  • Page 29 Service Manual ● Outdoor Unit GWH09AVDXE-D6DNA1A/O GWH09AVDXE-D6DNA1B/O GWH12AVDXE-D6DNA1A/O GWH12AVDXE-D6DNA1B/O WARNING OPTIONAL OPTIONAL Please don't touch any BOTTOM OUTTUBE OUTROOM EXHAUST ELECTRONIC terminal when the machine is BAND TEMP. TEMP. TEMP. EXPANSION running ,stopping or has been HEATER VALVE SENSOR SENSOR SENSOR powered off for less than 30 minutes to prevent the risk of electric shock !

  • Page 30: Pcb Printed Diagram

    Service Manual 5.2 PCB Printed Diagram ● Indoor Unit GWH09AVDXE-D6DNA1A/I GWH09AVDXE-D6DNA1B/I GWH12AVDXE-D6DNA1A/I GWH12AVDXE-D6DNA1B/I GWH18AVEXF-D6DNA1A/I GWH18AVEXF-D6DNA1B/I GWH24AVEXH-D6DNA1A/I GWH24AVEXH-D6DNA1B/I 9 10 11 12 Name Name Neutral Wire Insertion Stepping Motor Needle Stand 2 Live Wire Insertion Stepping Motor Needle Stand 4 Earthing Wire Insertion Left &...
  • Page 31 Service Manual ● Outdoor Unit GWH09AVDXE-D6DNA1A/O GWH09AVDXE-D6DNA1B/O GWH12AVDXE-D6DNA1A/O GWH12AVDXE-D6DNA1B/O 10 11 Name Name Earthing Wire Insertion Two-way Valve Needle Stand Live Wire Insertion Electronic Expansion Valve Needle Stand Communication Wire Insertion Outdoor Fan Needle Stand Neutral Wire Insertion Temperature Sensor Needle Stand Chassis Electric Heating Belt Needle Stand Compressor Overload Needle Stand Four-way Valve Needle Stand...
  • Page 32 Service Manual GWH18AVEXF-D6DNA1A/O GWH18AVEXF-D6DNA1B/O Name Name Earthing Wire Insertion Compressor Overload Needle Stand Live Wire Insertion Compressor Needle Stand Neutral Wire Insertion Program Debugging Needle Stand Communication Wire Insertion DRED Communication Needle Stand Four-way Valve Needle Stand Electronic Expansion Valve Needle Stand Chassis Electric Heating Belt Needle Stand / EEP Flash Drive Needle Stand Two-way Valve Needle Stand...
  • Page 33 Service Manual GWH24AVEXH-D6DNA1A/O GWH24AVEXH-D6DNA1B/O Name Name Neutral Wire Insertion Temperature Sensor Needle Stand Earthing Wire Insertion Compressor Overload Needle Stand Live Wire Insertion Electronic Expansion Valve Needle Stand Communication Wire Insertion Computer Monitor Needle Stand Four-way Valve Needle Stand DRED Communication Needle Stand Chassis Electric Heating Belt Needle Stand / EEP Flash Drive Needle Stand Two-way Valve Needle Stand...

  • Page 34: Function And Control

    6. Function and Control Service Manual 6.1 Remote Controller Introduction for YBE1FB9F Buttons on remote controller Introduction for icons on display screen Quiet Set fan speed Turbo mode Send signal Auto mode Cool mode Dry mode Fan mode Heat mode X-FAN function Humidity control Power limiting operation...

  • Page 35: Fan Button

    Service Manual NOTE: ● Set temperature range from remote controller: 16~30°C (61~86°F). ● This mode indicator is not available for some models. ● This function is only available for some models. ● Cooling only unit won't receive heat mode signal. If setting I Feel button heat mode with remote cont roller, press "On/Off"...

  • Page 36: Humidity Button

    Service Manual from off to , if press this button again 2s later, status will under dehumidification status; no need to set temperature and switch to off status directly; if press this button again within 2s, humidity. the change of swing status will also depend on the circulation NOTE: sequence stated above.
  • Page 37 Service Manual Cancel TIMER ON: Press "Timer" button again under TIMER the presetting sleep curve, enter into user individuation sleep ON status. setting status, but do not change the temperature, press "Health" button directly for confirmation. Note: In the above NOTE: presetting or enquiry procedure, if continuously within 10s, ●...
  • Page 38 Service Manual Temperature display switchover function provider. Under OFF status, hold "Mode" and " - " buttons simultaneously ● There may be some measuring deviation for humidity detection for 3s to switch temperature displaybetween °C and °F. and photosensitiveness detection. function Clean reminder function of filter The reminder function is defaulted to be OFF.

  • Page 39: Auto Clean Function

    Service Manual function is unavailable for this indoor unit, 20 minutes later, shown on remote controller, and the light of the two-way ventilation the remote controller will turn back to the status before fast system is turned on. Fan speed will be adjusted according to fan cooling.

  • Page 40: Brief Description Of Models And Functions

    Service Manual 6.2 Brief Description of Models and Functions Indoor Unit ● will operate at auto mode. Indoor fan operates at auto fan speed and swing function is turned on. Press this auto button at ON 1. Basic function of system status to turn off the unit.
  • Page 41 Service Manual In this case, the compressor, the ODU fan motor and the IDU fan less than 180+Ts(0≤T≤15). T is the variable of controller. Thats to motor operates at set speed. say the minimum stop time of compressor is 180s~195s. Read-in T ◆...
  • Page 42 Service Manual environment thermo-bulb, T a. Defrosting starts: the compressor is shut down, and restarts it heating indoor ambient temperature compensation the indoor ambient temperature compensation during heating after 55-second delay. operations) b. Defrosting ends: the compressor stops, then starts it after (1) If the compressor is shut down, and [(T –...
  • Page 43 Service Manual you should press the ON/OFF button to resume. The protection time of compressor exceeds the [t Protection times clearing of times of compressor is allowed to clear after the compressor run [t module] , the discharge protection is cleared to recount. Stopped ] 30 minutes.
  • Page 44 Service Manual VPFC does not open the undervoltage protection valuetime, if the over-heated). PFC is turned on, the bus voltage is smaller than the VPFC Open (c) Detect the sensor failure at all times in the testing mode. undervoltage protection value Times Under voltage protection, 5.

  • Page 45: Gree+ App Operation Manual

    GREE+ App Download Linkage Scan the QR code or search "GREE+" in the application market to download and install it. When "GREE+" App is installed, register the account and add the device to achieve long-distance control and LAN control of Gree smart home appliances.

  • Page 46: Ewpe Smart App Operation Manual

    Service Manual 6.4 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud intelligent Home Wi-Fi Cellular/ home Other Wi-FI appliances Home wireless router Home Wi-Fi Operating Systems Requirement for User's smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version above version...

  • Page 47: Notes For Installation And Maintenance

    7. Notes for Installation and Maintenance Service Manual Safety Precautions: Important! from the manufacture or distributor. Prohibit prolong the wire by yourself. P l e a s e r e a d t h e s a f e t y p r e c a u t i o n s c a r e f u l l y b e f o r e installation and maintenance.
  • Page 48 Service Manual UV-C lamp function instruction (1) The unit must be turned off and the power must be cut off before cleaning. Otherwise, it may cause electric shock and WARNING damage by UV. (2) Do not use volatile oil, alcohol, diluents or lacquer to clean This appliance contains a UV emitter.

  • Page 49: Safety Precautions For Installing And Relocating The Unit

    Service Manual Safety Precautions for Installing and Relocating the Unit: To ensure safety, please be mindful of the following precautions. WARNINGS 1. When installing or relocating the unit, be sure to keep the If compressor starts running when stop valve is open and refrigerant circuit free from air or substances other than the connection pipe is not yet connected, air will be sucked in and specified refrigerant.
  • Page 50 Service Manual ● Compliance with national gas regulations shall be R32 refrigerant warning observed. Read specialist’s manual. ● To realize the function of the air conditioner unit, a special refrigerant circulates in the system. The used refrigerant is the fluoride R32, which is specially cleaned. The refrigerant is flammable and inodorous.

  • Page 51: Safety Operation Of Flammable Refrigerant

    Service Manual to abnormal conditions such as false alarms of the Installation height (m) Charge refrigerant sensor. If such phenomenon occurs, please amount (kg) contact the after-sales service team for maintenance. Minimum room area (m 62.61 9.81 8.03 7.06 5.89 Safety Operation of Flammable Refrigerant 67.33 10.17...
  • Page 52 Service Manual No person carrying out work in relation to a dealt with. If the fault cannot be corrected immediately but it REFRIGERATING which involves exposing any pipe work shall use any is necessary to continue operation, an adequate temporary SYSTEM sources of ignition in such a manner that it may lead to the solution shall be used.
  • Page 53 Service Manual • Ensure that contamination of different refrigerants does not - fluorescent method agents. occur when using charging equipment. Hoses or lines shall If a leak is suspected, all naked flames shall be removed/ be as short as possible to minimise the amount of refrigerant extinguished.
  • Page 54 Service Manual i) Do not exceed the maximum working pressure of the charge is available. All cylinders to be used are designated for cylinder even temporarily. the recovered refrigerant and labelled for that refrigerant (i.e. special cylinders for the recovery of refrigerant). Cylinders shall j) When the cylinders have been filled correctly and the be complete with pressure-relief valve and associated shut- process completed, make sure that the cylinders and the...

  • Page 55: Main Tools For Installation And Maintenance

    Service Manual Main Tools for Installation and Maintenance Level meter Measuring tape Screw driver Impact drill Drill head Electric drill Electroprobe Universal meter Inner hexagon Electronic Torque wrench Open-end wrench spanner leakage detector Vacuum pump Pressure meter Pipe pliers Pipe pliers Pipe cutter Pipe expander Pipe bender...

  • Page 56: Installation

    8. Installation Service Manual 8.1 Installation Dimension Diagram Space to the wall At least 15cm Space to the wall At least 15cm Space to the obstruction At least 50cm Drainage pipe Installation and Maintenance...

  • Page 57: Installation Procedures

    Service Manual Installation Procedures Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...

  • Page 58: Installation Parts-Checking

    Service Manual 8.2 Installation Parts-checking (6) The appliance must be installed 2.5m above floor. (7) Don't install the indoor unit right above the electric appliance. Name Name (8) Please try your best to keep way from fluorescent lamp. Indoor unit Sealing gum 3.

  • Page 59: Installation Of Indoor Unit

    Service Manual (4) The appliance must be positioned so that the plug is accessible. the piping hole on the wall slightly downward to the outdoor side with the gradient of 5-10°. (As show in Fig.2) (5) An all-pole disconnection switch having a contact separation of at least 3mm in all poles should be connected in fixed wiring.
  • Page 60 Service Manual ● For the air conditioner with plug, the plug should be reachable after finishing installation. ● For the air conditioner without plug, an air switch must be installed in the line. The air switch should be all-pole parting and Insulating pipe the contact parting distance should be more than 3mm.

  • Page 61: Installation Of Outdoor Unit

    Service Manual to the actual installation situation) (3) Bind them evenly. (4) The liquid pipe and gas pipe should be bound separately at the (1) Select installation location according to the house structure. end. (2) Fix the support of outdoor unit on the selected location with expansion screws.
  • Page 62 Service Manual 4. Connect Indoor and Outdoor Pipes ● Top cover of outdoor unit and electric box assembly should be fixec by the screw. Otherwise, it can cause a fire, or short (1) Remove the screw on the right handle of outdoor unit and then circuit caused by water or dust.

  • Page 63: Vacuum Pumping And Leak Detection

    Service Manual 8.7 Vacuum Pumping and Leak Detection Items to be checked Possible malfunction 1. Use Vacuum Pump Has the unit been installed The unit may drop, shake or firmly? emit noise. (1) Remove the valve caps on the liquid valve and gas valve and Have you done the It may cause insufficient the nut of refrigerant charging vent.

  • Page 64: Maintenance

    9. Maintenance Service Manual 9.1 Error Code List Error Malfunction name AC status Possible causes code 1. Jumper cap is not installed in control panel; 2. Poor contact of jumper cap; Malfunction of jumper cap The complete unit stops operation 3.
  • Page 65 Service Manual Error Malfunction name AC status Possible causes code 1. Temperature sensor is not well connected or damaged; Liquid valve temperature 2. The wire of temperature sensor is damaged, causing short sensor is ON / short- circuit to copper pipe or outer casing; circuited 3.
  • Page 66 Service Manual Error Malfunction name AC status Possible causes code Cool/Dry: compressor and outdoor 1. Temperature sensor is not connected well or damaged; Outdoor condenser tem- fan stop operation, while indoor 2. Temperature sensor wire of outdoor unit is damaged; short perature sensor is open/ fan operates;...
  • Page 67 Service Manual Error Malfunction name AC status Possible causes code 1. Outdoor ambient temperature exceeds the operation range Cool: compressor and outdoor of unit (e.g.: less than 20°C or more than 60°C for cooling; more fan stops operation, while indoor than 30°C for heating);...
  • Page 68 Service Manual Error Malfunction name AC status Possible causes code Cool/Dry: compressor stops opera- DC bus voltage drop mal- tion, while indoor fan operates; The power voltage is unstable. function Heat: all loads stops operation. Cool: compressor and outdoor fan stops operation, while indoor 1.

  • Page 69: Procedure Of Troubleshooting

    Service Manual 9.2 Procedure of Troubleshooting 1. Troubleshooting for jumper cap Main check points: (1) jumper cap (2) control board of indoor unit Display shows “C5” Check whether the main Insert the equipped board of controller is inserted with jumper cap jumper cap.

  • Page 70: Communication Malfunction

    Service Manual 2. Communication malfunction Main check points: (1) Connection wire between indoor unit and outdoor unit (2) Wiring inside the unit (3) Communication circuit of control board of indoor unit (4) Communication circuit of control board of outdoor unit Start Check whether the unit has operated normally before...

  • Page 71: Ipm Protection

    Service Manual 3. IPM protection , over-phase current of compressor Main check points: (1) compressor COMP terminal (2) power supply voltage (3) compressor (4) charging amount of refrigerant (5) air inlet and air outlet of indoor/outdoor unit NOTE: The control board as below means the control board of outdoor unit. Put through the power to turn on the unit and then wait for 1min...
  • Page 72 Service Manual 4. Overload protection of compressor , high discharge temperature, protection of compressor Main check points: (1) electronic expansion valve (2) expansion valve terminal (3) charging amount of refrigerant (4) overload protector NOTE: The control board as below means the control board of outdoor unit. After the unit has been cut off the power for more than 20mins...
  • Page 73 Service Manual 5. Troubleshooting for temperature sensor , , , , Main check points: (1) connection terminal (2) temperature sensor (3) main board Start Check whether the connection terminal between the temperature sensor and the control board is loose or not connected well.
  • Page 74 Service Manual 6. High temperature prevention protection ; high power ; system is abnormal Main check points: (1) outdoor temperature (2) fan (3)air inlet and air outlet of indoor/outdoor unit NOTE: The control board as below means the control board of outdoor unit. Overload protection, high temperature prevention protection...
  • Page 75 Service Manual 7. Desynchronization diagnosis for compressor Main check point: (1) system pressure (2) power supply voltage NOTE: The control board as below means the control board of outdoor unit. Desynchronization occurs Desynchronization occurs during operation after turning on the unit Check whether the fan Replace the fan Does the outdoor fan operate...
  • Page 76 Service Manual 8. Malfunction diagnosis for failure startup Main check points: (1) compressor wire (2) compressor (3) charging amount of refrigerant NOTE: The control board as below means the control board of outdoor unit. Put through the power and turn on the unit The time for stop operation is not enough and the system's high pressure and low pressure is...
  • Page 77 Service Manual 9. Charging malfunction of capacitor Main check points: (1) wiring board XT (2) reactor NOTE: The control board as below means the control board of outdoor unit. Put through the power to turn on the unit and then wait for 1min Measure the voltage at both ends of electrolytic capacitor with DC voltmeter.
  • Page 78 Service Manual 10. Troubleshooting-motor(indoor fan) doesn't operate Main check points: (1) connection terminal (2) motor (3) control board AP1 of indoor unit (4) blade 10.1 DC motor Display shows "H6" Pull the blade with hand under de-energization status Check whether the Adjust the motor and the blade blade operates smoothly to make the motor operate...
  • Page 79 Service Manual 10.2 PG motor Display shows "H6" Pull the blade with hand under de- energization status Adjust the motor and Check whether the blade to make the the blade operates blade operate smoothly smoothly. Eliminate malfunction Check whether Insert the feedback the feedback terminal of terminal again indoor fan's motor...
  • Page 80 Service Manual 11. AC overcurrent protection Start The normal fluctuation is about 10% of rated Eliminate malfunction The power voltage is unstable. voltage on the nameplate. The power voltage is too low and the Adjust the power voltage to make it normal. Eliminate malfunction load is too high.

  • Page 81: Troubleshooting For Normal Malfunction

    Service Manual 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner can't be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether it's due to power failure. If yes, No power supply, or poor con- After energization, operation indicator isn't bright wait for power recovery.
  • Page 82 Service Manual 4. ODU Fan Motor can't Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Wrong wire connection, or poor Check the wiring status according to circuit dia- Connect wires according to wiring diagram to connection gram make sure all wiring terminals are connected firmly Measure the capacity of fan capacitor with an uni- Capacity of the ODU fan motor versal meter and find that the capacity is out of the...

  • Page 83: Removal Procedure

    10. Removal Procedure Service Manual 10.1 Removal Procedure of Indoor Unit Caution: discharge the refrigerant completely before removal. Note: Take one of model for example. Step Procedure Before Disassemble Turn off the air conditioner and disconnect the power before disassemble the air conditioner. 1.
  • Page 84 Service Manual Step Procedure 3. Remove Panel Panel rotation Display Panel Screws Separate the panel rotation shaft from the groove fixing the front panel and then removes the front panel. Note: The display of some models is fixed on the panel; unscrew the screws fixing the display on the panel before removing the panel.
  • Page 85 Service Manual Step Procedure 6. Remove Left and Right Side Plate Left side plate Screws Right side plate After removing the left and right side plate screws, lift the left and right sides up to remove them. 7. Remove Seal Cover Screws Remove the seal cover after removing the screws on the seal cover.
  • Page 86 Service Manual Step Procedure 9. Remove Connecting Rod Sub-assy Remove connecting rod sub-assy with stepping motor from clasps which are under seal cover. Connecting Rod Sub-assy Stepping motor 10. Remove Front Case Sub-assy Remove the screws fixing front case. Screw Front case sub-assy clasps...
  • Page 87 Service Manual Step Procedure Grounding Indoor tube screw temperature sensor Electric box assy Main board Wiring terminal of motor ① Cut off the wire binder and pull out the indoor tube temperature sensor. ② Screw off one grounding screw. ③ Remove the wiring terminals of motor, cold plasma generator and stepping motor.
  • Page 88 Service Manual Step Procedure Connecting pipe clamp At the back of the unit, Loosen the clasp of the connecting pipe clamp and then remove the connection pipe clamp. Clasp First remove the left side of evaporator from the groove of bottom shell and then remove the right side from the clasp on the bottom shell.
  • Page 89 Service Manual Step Procedure 13. Remove motor and cross flow fan Remove 3 screws fixing motor clamp and then remove the motor clamp. Screws cross flow fan motor Screw Loose the screws (2-3 circles) used for fixing the cross flow fan, pull right to pull out the motor. Installation and Maintenance...

  • Page 90: Removal Procedure Of Outdoor Unit

    Service Manual 10.2 Removal Procedure of Outdoor Unit Caution: discharge the refrigerant completely before removal. 09K, 12K Step Procedure 1. Before disassembly 2. Remove Cover of Pass Wire and Valve Cover Cover of Pass Wire Remove the screws fixing Cover of Pass Wire, valve cover and then remove them.
  • Page 91 Service Manual Step Procedure 4. Remove front panel assy Remove connection screws connecting the front panel assy, and then remove the front panel assy. Front panel 5. Remove right side plate assy Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal board, remove the terminal board, rescrew the screws fixing the right side plate, and remove the right side plate assy.
  • Page 92 Service Manual Step Procedure 7. Remove motor and motor support Motor support Remove the screws fixing the motor and then remove the motor. Remove the screws fixing the motor support and lift the motor support to remove it. Motor 8. Remove electric box assy Electric box assy Remove the terminals, lift up and rotate the electrical box assy to the right so that the snaps on the clapboard...
  • Page 93 Service Manual Step Procedure 10. Remove gas valve, liquid valve and valve suppprt Remove the valve support bolck, remove the screws fixing the gas valve and the liquid valve,unsolder the welding joint connecting the gas valve and the liquid valve, remove them. Note: Valve supprt Discharge the refrigerant completely befor unsoldering;...
  • Page 94 Service Manual Caution: discharge the refrigerant completely before removal. Step Procedure 1. Before disassembly 2. Remove Cover of Pass Wire and valve cover Cover of Pass Wire Remove the screws fixing Cover of Pass Wire, valve cover and then remove them. valve cover 3.
  • Page 95 Service Manual Step Procedure 4. Remove front panel assy Remove connection screws connecting the front panel assy, and then remove the front panel assy. Front panel 5. Remove right side plate assy Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal board, remove the terminal board, rescrew the screws fixing the right side plate, and remove the right side plate assy.
  • Page 96 Service Manual Step Procedure 7. Remove motor and motor support Motor support Remove the screws fixing the motor and then remove the motor. Remove the screws fixing the motor support and lift the motor support to remove it. Motor 8. Remove electric box assy Electric box assy Remove the terminals, lift up and rotate the electrical box assy to the right so that the snaps on the clapboard...
  • Page 97 Service Manual Step Procedure 10. Remove gas valve, liquid valve and valve suppprt Remove the valve support bolck, remove the screws fixing the gas valve and the liquid valve,unsolder the welding joint connecting the gas valve and the liquid Liquid valve valve, remove them.
  • Page 98 Service Manual Caution: discharge the refrigerant completely before removal. Step Procedure 1. Before disassembly 2. Remove big handle and valve cover Big handle Remove the screws fixing big handle, valve cover and then remove them. Valve cover Top cover 3. Remove top cover Remove the screws fixing top panel and then remove the top panel.
  • Page 99 Service Manual Step Procedure 4. Remove front panel assy Remove connection screws connecting the front panel assy with the chassis and the motor support, and then remove the front panel assy. Front panel assy 5. Remove right side plate assy Right side plate assy Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal board, remove the...
  • Page 100 Service Manual Step Procedure 7. Remove motor support and motor Motor support Motor Remove the screws fixing the motor support and lift the motor support to remove it. Remove the screws fixing the motor and then remove the motor. 8. Remove electric box assy Electric box assy Remove the terminals, lift up and rotate the electrical box assy to the right so that the snaps on the clapboard...
  • Page 101 Service Manual Step Procedure 10. Remove gas valve and liquid valve Remove the valve support bolck, remove the screws fixing the gas valve and the liquid valve,unsolder the welding joint connecting the gas valve and the liquid valve, remove them. Note: Liquid valve Discharge the refrigerant completely befor unsoldering;...

  • Page 102: Appendix

    Appendix: Service Manual Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius temperature（℉） temperature（℉） temperature（℉） （℉） （℃） （℉） （℃）...

  • Page 103: Appendix 3: Pipe Expanding Method

    Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Improper pipe expanding is the main cause of refrigerant leakage.Please expand Pipe cutter the pipe according to the following steps: A:Cut the pip Leaning Uneven Burr ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●...

  • Page 104: Appendix 4: List Of Resistance For Temperature Sensor

    Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.10 49.02 18.75 7.97 128.60 44.31 17.14 7.35 115.00 40.09 15.68 6.79 102.90 36.32...
  • Page 105 JF00305642 GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI Add: West Jinji Rd, Qianshan, Zhuhai,Guangdong, China, 519070 Tel: (+86-756) 8522219 Fax: (+86-756) 8669426 E-mail: global@cn.gree.com For product improvement, specifications and appearance in this manual are subject to change without prior notice.

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